DS1486 Datasheet, PDF (9/17 Pages) Dallas Semiconductor – RAMified Watchdog Timekeeper

ABSOLUTE MAXIMUM RATINGS*
Voltage on any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
DS1486/DS1486P
-0.3V to +7.0V
0°C to 70°C
-40°C to + 70°C
260°C for 10 seconds (See Note 14)
* This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
SYMBOL MIN TYP
Power Supply Voltage
Input Logic 1
Input Logic 0
V_CC
4.5 5.0
V_IH
2.2
V_IL
-0.3
MAX
5.5
V_CC+0.3
+0.8
(0°C to 70°C)
UNITS NOTES
V
10
V
10
V
10
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Input Leakage Current
I_IL
Output Leakage Current
I_LO
I/O Leakage Current
Output Current @ 2.4V
Output Current @ 0.4V
Standby Current CE = 2.2V
I_LIO
I_OH
I_OL
I_CCS1
Standby Current CE = V_CC -0.5
Active Current
Write Protection Voltage
I_CCS2
I_CC
V_TP
MIN
-1.0
-1.0
-1.0
-1.0
4.0
(0°C to 70°C; V_CC = 5V ± 10%)
TYP MAX UNITS NOTES
+1.0
mA
+1.0
mA
+1.0
mA
mA
13
2.1
mA
13
3.0
7.0
mA
4.0
mA
85
mA
4.25 4.5
V
CAPACITANCE
PARAMETER
Input Capacitance
Output Capacitance
Input/Output Capacitance
SYMBOL
C_IN
C_OUT
C_I/O
MIN
TYP
7
7
7
MAX
15
15
15
(t_A = 25°C)
UNITS NOTES
pF
pF
pF
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